103919993 has 4 divisors (see below), whose sum is σ = 104046480. Its totient is φ = 103793508.

The previous prime is 103919983. The next prime is 103919999. The reversal of 103919993 is 399919301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103919993 - 2²⁴ = 87142777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103919999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62003 + ... + 63656.

It is an arithmetic number, because the mean of its divisors is an integer number (26011620).

Almost surely, 2^103919993 is an apocalyptic number.

It is an amenable number.

103919993 is a deficient number, since it is larger than the sum of its proper divisors (126487).

103919993 is an equidigital number, since it uses as much as digits as its factorization.

103919993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126486.

The product of its (nonzero) digits is 59049, while the sum is 44.

The square root of 103919993 is about 10194.1156065644. The cubic root of 103919993 is about 470.1463147903.

The spelling of 103919993 in words is "one hundred three million, nine hundred nineteen thousand, nine hundred ninety-three".